If your foxflash/kess3/fc200/xhorse multi prog programmer etc failed to correct checksum for ECUs, you can correct the checksum manually with L-suite software.
Let’s calculate checksums the easy way.
L-suite won’t do checksums on all ecus, but the common ones are easy to sort out with proper quick software.
So let’s begin, start by downloading Lsuite software from
It’s about 11mb, unzip it anywhere you like. Desktop or wherever.
Then we install vcredist_86.exe on that zip archive.
Time to start Lsuite, first time opened it asks.
Please choose dlls folder location. It uses Kess checksum calculating DLL library files.
So lsuite opens up and theres the dll archive allready which your going to chooce in same zip root archive.
Select dll folder and press “select folder”
Now press autodetect on in left corner.
Now we are ready to rock, so whats next?
Now go to firmware box.
Bin file: here you select your mod file.
Nice, now press run and it will calculate checksums, on some cases it wants to compare your modfile to original bin. If so then just select where that ori file is.
Let tool calculate and end result identification.
It will save that now checksumed file on same location where modfile was.
Now you can write file in and if tool asks to calculate cs, just select no.
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